Breaking News: Sig MCX Rattler AKA MCX-K

by Nicholas CAugust 21, 2017

Earlier this year US SOCOM submitted an RFI for a new PDW. Nathaniel F. wrote an article about it back in March. PDW Kit specifics: The kit must be adaptable to the standard M4A1 lower receiver, any modification to the lower receiver must be reversible and nonpermanent. The kit must be in .300 Blackout (BLK) […]